#wo{
    width: 1000px;
    height: 450px;
   
  border: 3px solid black;
}
.sub{
    width: 200px;
    height: 30px;
    margin-top: 10px;
    margin-left: 400px;
    
}
.a{
    font-size: 25px;
    
    margin-left: 500px;
 
}
.v{
    width: 500px;
    height: 100px;
    border: 2px solid;
    margin-left: 250px;
    margin-top: 20px;
}
.l{
    width: 750px;
    height: 200px;
   
    margin-left: 10%;
    border: 2px dashed;
}